The tifosi dolomite 20 sunglasses with clarion lenses are easily adjusted to your head shape to provide immense comfort and protection while riding hard the clarion lenses prevent any moisture from building up while several vents improve air circulation to stop any fogging up while out riding ensuring you maintain full vision of the road ahead in all weather conditions with a highly durable and flexible grilamid tr 90 nylon frame construction the cycling sunglasses are incredibly l